William campbell



(No Model.)

2 Sheets-Sheet 1. W. CAMPBELL.

HEATER.

Patented May 14, 1895.

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2 Sheets-Sheet 2.

W.v CAMPBELL.

(No Model.)

HEATER.

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UNITED STATES i `WILLIAM CAMPBELL, OF UTICA, NEW YORK, ASSIGNOR TO THE CARTON FURNACE COMPANY, OF SAME PLACE.

HEATER.

SPECIFICATION forming part of Letters Patent No. 539,166, dated May 14, 1895. Application filed November 30,1894; SerialNo. 530,438. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM CAMPBELL, of Utica-,inthe county of Oneida and State of New York, have invented certain new and useful Improvements in Heaters; andI do hereby declare that the following is a full, clear, and exact description of` the invention, which will'enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures ot reference marked thereon, which form part of this speciiication.

My invention relates to an improvement in hot water heaters. These heaters are also adapted to use as steam heaters.

In the drawings which accompany and form a part of this specitication, and in which similar letters and figures of reference refer to corresponding parts in the several views, Figure 1 shows a vertical section ot the boiler, partially in perspective and broken out to show various details of the construction. Fig. 2 shows details relating to the manner in which the grate is supported. Fig. 3 shows the same details shown in Fig. 2 at right angles from'the position in which they are shown in Fig. 2; Fig. 4 shows a horizontal section of the legs of three sections, showing also the lugs on which the grate is supported. Fig. 5

shows details-of the construction'ot the grate.v

Fig. 6 shows a side or face elevation of one of themain or body sections of which the heater is constructed. Fig. 7 vshows the back or rear section. Fig. 8 shows a vertical section -of the section shown in Fig. 6. Fig. 9 shows a horizontal section above the grate of the construction ofheater shown in Fig. l.

The heater as shown consists of tive main or body sections A, A, zc., arranged side by side, and a rear section B also abutting on the last of the other sections. In connection with these sections is provided a front C and a back D.

Each of the sections A consists of a pair of vertical legs or water tubes l and 2 between which are provided the arched water tubes 3,v

e and 5. Communicating with these and intermediate of the legs l and -2 are the vertical tubes 6, 7 and 8. The tubes 7 and 8 diverge into two curved branches at their upper ends, one branch curving out and comv municating with the leg l as shown at 7a. Theother branch 7'b communicates with the curved branches 6a and 6b is the same as that of 7 and 7b. Thearrangemeut of arched and vertical tubes described divides the upper portion ofthe section A into a lower set of return iiues four in number, and an upper set of return liues y, y, being six in number. The several arched tubes 3 form the crown sheet over the tire chamber and are substantially V-shaped in cross section as clearly appears from Fig. 1. Thisarrangement forms a corrugated top to the tire chamber, the corrugations running transversely to the length of the chamber and forming intervals between the V-shaped tubes 3, as also clearly appears from Fig. l. The arched shaped tubes 3 on their lower projecting edges are also provided with comparatively small corruga- .tions as shown at 3a, which run in a direction `substantially lengthwise with the tire chainber.

These corrugations aord a more extended surface' exposed to the tire as well as obviating the tendency to crack the section land a tendency to separate the lower end of the legs of the section when the same are Extending from frontto r heated by the tire. rear over the top of the section is provided a drum or header E. Each sectionis connected at its middle point at the lupper end by a short section of tube or pipe 9 with this drum.

At the bottom at either side of tho heater are provided smaller headers or drums F, F, which are connected with the lower ends of the legs of the section by short pieces of pipe or nipples 10. The outliowing pipe is connected with the drum E and the return pipe with one or theother or both of the drums F, and any number of systems which the heater is able tosupportmaybesoconnected. Connections for one are shown with the drum E in Fig. l, and two on each of the drums F in Fig. 9.

The sections A are held in position and in contact with each other, as clearly appears from Fig. 9 by the nipples lO, l0 on either side at the base and the nipple 9 at the head.

In connection with the heater built up of sections as shown, is provided a front C which Ico is secured to the front section A by bolts 12 passing through the front andthe perforated ears 13 provided on the outside of each of the sections A.

A suiicient number of sections A are provided to form a heater of the desired capacity, and on the rear of this is provided a back sec tion B. The section B consists of two vertical legs 1 and 2a. Between these legs are provided two corrugated walls 11 and 14 between which is afforded a water space, and the walls 11 and 14 are provided with suitable stays 15 spanning the water space. The section B is connected by short tubes or nipples with the main header or drum E and the side headers or return drums F in the same manner as the other sections. The arrangement and construction of the rear section B are such that the corrugated walls 11 and 14 terminate at their upper ends at 4 on aline with the arched tube 4 of the other sections and the thickness of the section B and position of the wall 14 thereof are such that a iiue is provided from the fire chamber X around the arched tube 3 of the rear section A and communicating with the return flues fr, in the lower part of the npper half of the sections A. The upper partof the rear section Bis provided with the up-` per set of return fines y, coinciding with those of the section A. On the rear of the section B is provided a back D extending from top to bottom of the rear section. The rear plate or back D is so constructed as to afford a vertical smoke iiue 16 which is in communication with the upper setof return ilues 51j, and is provided with means for the attachment of a direct or indirect draft flue, as shown at D and D2 respectively. In the lower end of the iue 1G may also be provided a cleaning-out door D3. The inner sides of the legs 1 and 2 of the sections A are provided with lugs 17 which support the grate bearing bars 18. The grate, as shown, consists of a series of transverse rocking bars 19 having bearing in the bar 18 at either end and each provided with an arm 20 connecting with a rod or bar 21 by which they may be rocked to shake the grate. The particular form of construction of grate, however, is not material. The grate bars are held in place in the bearing bar 18 by an upper bearing 22. This bearing is provided with inclined extension lips or portions 22a projecting into the intervals between the oval-shaped legs of the sections A and closing the same against passage of fuel or ashes. In order to afford a passage between the lower set of return flues ac and the upper set y at the front of the heater, I provide a swell front door C which allows the products of combustion and gases to pass from the flues to those y, as indicated by the circulation arrows in Fig. 1.

The circulation of the water of the sections A is shown by the arrows in Fig. 8. It will be noted that the interior construction is such that provision is made for bringing the water in its circulation in the section directly over the hottest part of the lire and passing that portion of the water which is hottest directly to the top which connects with the drum E, while that portion of the water which is not so fully heated is allowed to circulate back to the hottest part of the section to be fully heated before being delivered to the drum E. The arrangement is also such that the circulation will keep the tubes of the section clean and free of sediment, affording the sediment an opportunity to all accumulate in the vcrtical legs 1 and 2 of the sections where it may be drawn off at Aintervals by partially drawing the water from the heater and its connecting system of heating pipes.

The heater as shown is preferably covered with a plaster or mastic of asbestos or some similar non-combustible material which will prevent radiation.

It will be understood that the products of combustion pass from the tire on the grate to the rear of the heater, up the Wali14 past the crown flues 3, thence through the four lower set of return lues a: to the front of the heater Where they rise to the upper set y of the return iiues and pass to the rear of the heater into the smoke flue 16, and thence out through a direct or indirect flue attached at D or D2 as the case may be.

What I claim as new, and desire to secure by Letters Patent, isl A 1. The combination in a heater of a series of sections bestride the tire chamber, each section having an arched water tube over the fire chamber, which tube is substantially V shaped in cross section with the point depending into the fire chamber and the shell of the tube being corrugated in its entire body ou its exposed bottom and sides, substantially as set forth.

2. A section for a heater having two vertical water legs, a series of arched water tubes between the upper portions of the legs,a discharge opening located centrally in the top arched tube, vertical water tubes G, 7 and 8 connecting the arched tubes, the tubes 6 and 7 diverging at their upper ends toward the outside in branches 6 and 7a respectively, and toward the center of the section in lbranches 6b and 7 b respectively, whereby provision is made for the free circulation in the section and the delivery of the hottest water at the discharge outlet, substantially as set forth.

3. The combination in a heater of a series of sections having arched tubes dividing the upper portion of the section into an upper and lower set of openings forming an upper and lower redirect draft flueand a tire chamber in the lower portion of the sections, a rear section having double walls aifording a water space, the wall 14 thereof being let back into the front face of the section aording a passage from the rear of the tire chamber into the lower set of tlues and terminating at its upper end in contact with the arched flue of the regular sections which divides the upper IOO IOS

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and lower set of draft fines, substantially as between the sections, substantially as set 1o set forth. forth. Y

4. In a heater, a series of sections bestride v In witness whereof I have affixed my signathe re chamber, each section having a downture in presence of two witnesses. wardly extending leg and. inwardly projeet- T v1 ing lug 17 on the leg, agrate bearing bar 15 V ILLIAM CAMPBELL' resting on the lugs of each section, and an Witnesses: upper grate retaining bar 22 having inclined M. A. KELLER, projections 22 extending intov the intervals GEORGE C. CARTER. 

